11001220111002 has 32 divisors (see below), whose sum is σ = 24004151446464. Its totient is φ = 3333496204800.

The previous prime is 11001220111001. The next prime is 11001220111093. The reversal of 11001220111002 is 20011102210011.

It is not an unprimeable number, because it can be changed into a prime (11001220111001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4098103 + ... + 6228714.

It is an arithmetic number, because the mean of its divisors is an integer number (750129732702).

Almost surely, 2^{11001220111002} is an apocalyptic number.

11001220111002 is an abundant number, since it is smaller than the sum of its proper divisors (13002931335462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11001220111002 is a wasteful number, since it uses less digits than its factorization.

11001220111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10342974.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11001220111002 its reverse (20011102210011), we get a palindrome (31012322321013).

The spelling of 11001220111002 in words is "eleven trillion, one billion, two hundred twenty million, one hundred eleven thousand, two".